Panasonic FV-0511VK2 WhisperGreen Select Ventilation Fan with Speed Controls, 50-80-110 CFM, Quiet Energy Star Certified Ceiling Mount Bathroom Fan with Pick-A-Flow Airflow Technology, Compatible with SmartAction Motion and Condensation Sensors

The WhisperGreen Select fan operates quietly at an “always on” low speed to maintain fresh air and increases to a higher speed when activated by a switch or sensor; it automatically returns to low speed after a user-set time. The only residential vent fan series with a combination of certified CFM performance at 0.5 w.g. and low sone levels, the WhisperGreen's superior performance exceeds industry standards set by ASHRAE and ENERGY STAR. Flex-Z Fast Bracket simplifies installation with a single-hinge bracket for easy positioning so you don’t need to access your attic to install the fan and includes options for 4" or 6" ducting. Ideal for use in the bathroom, laundry room, sun room, basement or garage. Can accommodate up to 3 add-on modules including WiFi, Smart Action Motion Sensor, Condensation Sensor, and Multi-Speed with Time Delay

• Quiet, Clean Air: Exhaust fan has whisper-like sound levels while improving air quality in any room
• Long Life: Uses less energy to move larger volumes of air preventing overheating, lasting longer
• Flexible Installation: Comes with Flex-Z Fast bracket for easy, fast, and trouble-free installation
• Plug 'N Play: Modules allow customization, including motion sensors or condensation sensors
• Energy Star Rated: Delivers powerful airflow without wasting energy